A good question [originally posted on semantic-web and public-lod lists]. (01)
Forwarding the conversation to Ontolog-Forum and SIOC-Dev lists as
their subscribers may also have interesting insights. (02)
Simon Reinhardt wrote: (03)
> Hi,
>
> It is becoming somewhat popular for large ontologies to be split into a core
>ontology file and module ontology files (which import the core). Normally each
>module then gets its own namespace for the terms defined in it. I was
>wondering though if that is too complicated for users of the ontologies. I
>have seen confusion of "sioc" and "sioct" (the prefixes for the SIOC core and
>the SIOC Types module namespaces) and when such vocabularies get higher
>adoption by people not so well versed with ontologies I can see it happen a
>lot more often.
>
> So as an alternative I want to explore the idea of just using one namespace
>shared between the core and the modules. The advantage would be not having to
>guess which namespace to use. One disadvantage for the developer(s) of the
>ontology is that a "local name" can only be used in one of the modules or
>core, you can't use the same "word" under a different namespace with a
>different meaning. Another disadvantage is that if you want the terms to
>dereference to the ontology files they have been defined in then you can only
>do that with a "/" namespace (and you have to set up lots of redirects).
>
> My questions: What do you think of that idea? Can you see any other
>advantages or disadvantages? Do you think several namespaces are not confusing
>at all? And what are the main advantages to splitting up ontologies into
>modules other than being easier to organise? Do they justify a higher burden
>on the ontology users?
>
> Thanks,
> Simon
> (04)
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